Home / 21,154,467.30-31,731,700.95-5,198,115.30

Finding the Fourth Proportional to 21,154,467.30, 31,731,700.95 and 5,198,115.30

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Solution

The fourth proportional to 21,154,467.30, 31,731,700.95 and 5,198,115.30 is: 7,797,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154,467.30 : 31,731,700.95 = 5,198,115.30 : x
  2. Step 2: Convert to fraction form
    21,154,467.30/31,731,700.95 = 5,198,115.30/x
  3. Step 3: Cross multiply
    21,154,467.30x = 31,731,700.95 × 5,198,115.30
  4. Step 4: Simplify right side
    21,154,467.30x = 164,945,040,203,219.53
  5. Step 5: Solve for x
    x = 164,945,040,203,219.53/21,154,467.30
  6. Step 6: Final answer
    x = 7,797,172.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.